.van-ban{
    width: 100%;
    height:100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 2px solid blue;
    border-radius: 10px;
}
.van-ban span{
    width: 100px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    border-radius: 10px;
    background-color: aqua;
    color:#fff;
    font-size: 25px;
}

.van-button{
    width: 200px;
    height:50px;
    background-color: aqua;
    opacity: .5;
    color: bisque;
    font-size: 30px;
    border-radius: 10px;
    margin: 10px;
}


/* body{
    background: #56b4ab;
  } */
  .van-loading,
  .van-loading:before,
  .van-loading:after {
    background: #FFF;
    /*
    * load1：执行的动画名
    * 1s：执行一秒
    * infinite：执行无限次
    * ease-in-out：动画以低速开始和结束
    */
    animation: load1 1s infinite ease-in-out;
    width: 1em;
    height: 4em;
  }
  .van-loading:before,
  .van-loading:after {
    position: absolute;
    top: 0;
    content: '';
  }
  .van-loading:before {
    left: -1.5em;
  }
  .van-loading {
    text-indent: -9999em;
    /* margin: 40% auto; */
    position: fixed;
    top:50%;
    left:50%;
    font-size: 11px;
    /* 延时0.16s */
    animation-delay: 0.16s;
  }
  .van-loading:after {
    left: 1.5em;
    /* 延时0.32s */
    animation-delay: 0.32s;
  }
  @keyframes load1 {
    0%,
    80%,
    100% {
      box-shadow: 0 0 #56b4ab;
      height: 4em;
    }
    40% {
      /* 实现上部拉伸 */
      box-shadow: 0 -2em #56b4ab;
      /* 实现下部拉伸 */
      height: 5em;
    }
  }

  .van-jump{
      width: 300px;
      height:50px;
      text-align: center;
      line-height: 50px;
      font-size: 30px;
      background-color: bisque;

  }


 